Developed by Nick Zorin, Download Master simplifies the downloading process.This plugin facilitates downloading with just a couple of clicks. But the only drawback is that you need to have the download manager application before you can install the extension.

Download here

SocialPlus

This extension lets you customize your facebook profile and lets you enhance social networking like never before.

SocialPlus

Here are some features that Social Plus adds to Facebook :

Album Slideshow

Keyboard Navigation

New Notification

Color statuts

Emoticons

I don’t like button

Skin your profile

videoChat

skin Creator

Download Social Plus here

These were the best extensions that I could find for Google chrome. Personally, I like Social plus and I am pretty impressed by the flexibility that it ads to our Social networking experience.